diff --git a/pika-build-config/lto.sh b/pika-build-config/lto.sh
index e24b6e055..6d2c5db04 100644
--- a/pika-build-config/lto.sh
+++ b/pika-build-config/lto.sh
@@ -1,5 +1,5 @@
-export PIKA_PACKAGE_VERSION="0.1.0-5"
-export PIKA_PACKAGE_NAME="haskell-reinterpret-cast"
+export PIKA_PACKAGE_VERSION="0.8.4-2"
+export PIKA_PACKAGE_NAME="haskell-clock"
 export PIKA_PACKAGE_PATCH=false
 export PIKA_REBUILD=false
 export PIKA_REBUILD_VERSION="b0"